A 1-1b bar initially at 783K is removed from an oven and quenched by immersing it in a closed tank containing 30-lb of water initially at 294K. Each substance can be modeled as incompressible. An appropriate constant specific heat value for the water is c-4.187 kJ/kg-K and an appropriate value for the metal is cm -0.419 kJ/kg-K. Heat transfer from the tank contents can be neglected. Determine:

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A 1-1b bar initially at 783K is removed from an oven and quenched by immersing it in a
closed tank containing 30-lb of water initially at 294K. Each substance can be modeled as
incompressible. An appropriate constant specific heat value for the water is c-4.187 kJ/kg-K and an
appropriate value for the metal is cm -0.419 kJ/kg-K. Heat transfer from the tank contents can be
neglected. Determine:
Transcribed Image Text:A 1-1b bar initially at 783K is removed from an oven and quenched by immersing it in a closed tank containing 30-lb of water initially at 294K. Each substance can be modeled as incompressible. An appropriate constant specific heat value for the water is c-4.187 kJ/kg-K and an appropriate value for the metal is cm -0.419 kJ/kg-K. Heat transfer from the tank contents can be neglected. Determine:
the final equilibrium temperature of the metal bar and the water in k
316.19 K
416.19 K
49.76 K
294.16 K
the entropy change considering both metal and water
0.781
- 0.781
3.182
- 3.182
Transcribed Image Text:the final equilibrium temperature of the metal bar and the water in k 316.19 K 416.19 K 49.76 K 294.16 K the entropy change considering both metal and water 0.781 - 0.781 3.182 - 3.182
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